/*******************************************************************************
 * Copyright (c) 2006 Sybase, Inc. and others.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http:// www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Sybase, Inc. - initial API and implementation
 *******************************************************************************/
package org.eclipse.jst.pagedesigner.jsf.ui.elementedit.jsfcore;

import org.eclipse.core.resources.IStorage;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.IEditorRegistry;
import org.eclipse.ui.IPersistableElement;
import org.eclipse.ui.IStorageEditorInput;
import org.eclipse.ui.PlatformUI;

/**
 * @author mengbo
 * @version 1.5
 */
public class JarEntryEditorInput implements IStorageEditorInput
{

    private IStorage fJarEntryFile;

    /**
     * @param jarEntryFile
     */
    public JarEntryEditorInput(IStorage jarEntryFile)
    {
        fJarEntryFile = jarEntryFile;
    }

    /*
     */
    public boolean equals(Object obj)
    {
        if (this == obj)
        {
            return true;
        }
        if (!(obj instanceof JarEntryEditorInput))
        {
            return false;
        }
        JarEntryEditorInput other = (JarEntryEditorInput) obj;
        return fJarEntryFile.equals(other.fJarEntryFile);
    }

    
    @Override
    public int hashCode() 
    {
        // two editor inputs are equal if their fJarEntryFile's are
        // equal.  Therefore use the same criteria for hashcodes
        return fJarEntryFile.hashCode();
    }

    /*
     * @see IEditorInput#getPersistable()
     */
    public IPersistableElement getPersistable()
    {
        return null;
    }

    /*
     * @see IEditorInput#getName()
     */
    public String getName()
    {
        return fJarEntryFile.getName();
    }


    /**
     * @return the full path of the entry as a string
     */
    public String getFullPath()
    {
        return fJarEntryFile.getFullPath().toString();
    }


    /**
     * @return the file extension of this input
     */
    public String getContentType()
    {
        return fJarEntryFile.getFullPath().getFileExtension();
    }

    /*
     * @see IEditorInput#getToolTipText()
     */
    public String getToolTipText()
    {
        return fJarEntryFile.getFullPath().toString();
    }

    /*
     * @see IEditorInput#getImageDescriptor()
     */
    public ImageDescriptor getImageDescriptor()
    {
        IEditorRegistry registry = PlatformUI.getWorkbench().getEditorRegistry();
        return registry.getImageDescriptor(fJarEntryFile.getFullPath().getFileExtension());
    }

    /*
     * @see IEditorInput#exists()
     */
    public boolean exists()
    {
        // JAR entries can't be deleted
        return true;
    }

    /*
     * @see IAdaptable#getAdapter(Class)
     */
    public Object getAdapter(Class adapter)
    {
        return null;
    }

    /*
     * see IStorageEditorInput#getStorage()
     */
    public IStorage getStorage()
    {
        return fJarEntryFile;
    }
}